No distant metastases have so far been documented to arise from this lesion

Since distant metastasis has not beeen documented so far, I prefer not to call these lesions (lentiginous) melanomas, despite the fact that this term has become entrenched in the literature.

In addition, many reported cases are entirely intraepidermal, which also makes the label of melanoma inappropriate.

Since these are very superficial lesions (entirely intraepidermal, or compound lesions with a very superficial component) and more data regarding their possible malignant potential are required, I prefer to use the term introduced by Dr David Elder:
SAMPUS (superficial atypical melanocytic proliferation of uncertain significance), lentiginous subtype.

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Dear {friend_name},
{url}
I believe this website may be of interest to you. It is an Open Educational Resource, containing a large collection of digitized histologic slides with explanatory films and other materials, aimed at surgical pathologists, dermatopathologist and pathologists in training. This site is entirely based on consultation materials of professor Wolter Mooi, VU University Amsterdam, and can be used free of charge.
Kind regards,
{my_name}